Sometimes you will need to have more complex conditions to determine what you need. This goes beyond having Boolean logic, but moves into finding a value in a series of values. This is where we might use a if else if series of code blocks, or a switch statement. If Else If Do you have…
Trying to list the most popular languages can be a real challenge. This is because the popularity of programming languages vary over time and depend on the specific field or application. For example, Python is widely used in fields such as Machine Learning and scientific computing, while JavaScript is one of the core technologies of…
There are many reasons why there are different programming languages. Evolving Technology One of the main reasons is that technology is always evolving, and as more technologies come into being and advance, we need more tools that can make use of these technologies. You might remember from previous classes with me, we’ve talked about how…
Java has two different types of sets, Unsorted and Sorted… even if Math Sets are technically unsorted. Unsorted Sets Unsorted sets in Java are not a class that can be defined. Therefore you need to use the HashSet and then use the polymorphic nature of the OOP to create the set. From here, you want…
The Stack class is found in java.util and it extends the Vector Class. This means it can grow and shrink as needed, which is helpful for a Stack. As it extends a Vector, it is helpful to Parameterize the constructor. Just like the Stack that we’ve created, it has the same methods: push(), pop(), and…
You will find conditions in Java familiar if you are used to using boolean conditions in C/C++. However, noticed that I said boolean conditions. That is because Java wants boolean conditions, those that generate a true or false answer, instead of the C/C++ conditions which actually look for an integer value. Notice the following below…
Creating our first file is fairly simple. Using an IDE like Visual Studio Code is a good place to start. Eclipse is another popular IDE, as are some others. However, you only have to have a plain text editor if you want. You can use a command line compiler and run time tool if you…
Writing a class or two doesn’t seem to create that big of a problem, and for simple projects it’s not. However, this isn’t effective for large projects with dozens, if not hundreds, of Classes. That’s where packages come into play. A Java package is a way to both logically and physically organize your Java code….
